Home / 154,885.14-213,733.89-87,804.18

Finding the Fourth Proportional to 154,885.14, 213,733.89 and 87,804.18

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Solution

The fourth proportional to 154,885.14, 213,733.89 and 87,804.18 is: 121,165.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,885.14 : 213,733.89 = 87,804.18 : x
  2. Step 2: Convert to fraction form
    154,885.14/213,733.89 = 87,804.18/x
  3. Step 3: Cross multiply
    154,885.14x = 213,733.89 × 87,804.18
  4. Step 4: Simplify right side
    154,885.14x = 18,766,728,949.66
  5. Step 5: Solve for x
    x = 18,766,728,949.66/154,885.14
  6. Step 6: Final answer
    x = 121,165.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.